†Proleptochiton (chiton)
Parent taxon: Neoloricata according to J. J. Sepkoski 2002
Sister taxa: Abyssochitonidae, Acanthochitonina, Acanthopleura, Afossochiton, Amicula, Austrochiton, Beloplaxus, Chaetopleuridae, Chitonidae, Chitonina, Colapterochiton, Crenatolorica, Cryptoconchus, Cryptoplacidae, Cyanoplax, Cymatochiton, Elachychiton, Eulachychiton, Euleptochiton, Glaphurochiton, Glyptochiton, Guildingia, Hanleyidae, Kindbladochiton, Laculina, Lavenachiton, Lepidopleurina, Lirachiton, Llandeilochiton, Loboarochiton, Mesochiton, Mopaliidae, Nuttallina, Permochiton, Protalochiton, Protochiton, Pseudoischnochiton, Stenoplax, Tonicella, Trachypleura, Xylochitonidae
Subtaxa: none
Ecology: facultatively mobile epifaunal grazer